Safety device



Feb. 4, 1930. 'PERKlNS 1,746,163

SAFETY DEVICE Filed Jan. 5, 1929 INVENTOR ATTORNEY 3 I A further objectof the invention consists in the provision of cable, etc, is broken 1Figure 2is' atop plan view thereof.

' J 1 Tongues 15, projecting at right angles and at intermediatepointsin the lengths of the I 1. Patented V 14 I 'UN lT-ED STA fGEoRGn B.PERKINS, or: EUREKA, oononn'no SAFETY nnvrcn Application filed January5,

, This invention relates to, safety devices 7 primarily 'adapted for useupon mine and other'cars traveling uponinclined driveways. An object'ofthe invention 'comprehends a 1 Another ob ect ofthe invent-ion contem- 5gripping element for the vehicle.

plates a yielding element for the gripping element'to normally inducesame to occupy an operative position.

aconnection between the vehicle draft appliance and "the'grippingelement whereby the latter will be shifted for active use when thetongue, king bolt, to prevent retrograde movement of the'vehicle. V r IWith the above and other objects in view, the invention further consistsof the following novel features and details of construc- 20 tion to behereinafter more fully described, illustrated in the accompanyingdrawing and I pointed out in'th'e appended claim. 7

In the drawing I Figure 1 is a side elevation of the invention.

Referring to: the drawingin detail, wherein I like characters ofreference denote corre-'v qsponding parts, the referencecharacter 10"indicates generally'rafmine or other car traveling upon rails 11 andsupported by ties v Asheretofore experienced, the lives of mine Workersin mineshafts are in constant jeopardy by the-possibilities of thebreaking r of cables, tongues and other draft appliances .for the cars.p

The present invention has been primarily 7 designed to overcome thisgrave possibility r t and which compr ses an equalizer bar, such asindicated at 13,v having its ends slidably mounted Within slots14 inthe'side walls of the cars. I

equalizer bars 13, are projected through the i I adjacent end Walls ofthe. carsfor connection with cables or other draft appliances16.

The connection between theequalizer bar 13' and the tongue 15 comprisesan extension, 15 projecting from the innermost end of the vtongue andtransversely through the intertheitongue 15' at the intersection of the,ex

mounted for lro'c king movement, as at "18,1 upon trunni'ons 18: having-18 o fupofn the innermost ends thereof and Secured-to the inner sidesof the car, and upon todispose their outermost free ends downthef-t-racks.

' and at right angles reception within a yoke member 20, included uponone end of aturn buckle rod 21; having as" iron ore, etc;

bodies and in line wit-hthat ofthe' turn buckle 3 position.

termediate portions spaced therefrom to r f the dogs or elementstherebetween but to restrict 1929, Serial No. 330,654.,

mediate portion of the-equalizer bar'asshown. in Figure 2ofitl'iedrawing. A shoulder15 preferably ofannular, formation, carriedby tension 15 therefor, is adaptedto abut the ad acent outer surfaceo'f'the jbar 13 about 7' .the opening therein receiving said'extension.

. 1A nut15 -nand Washer 1'5 are carried upon the innermost protrudingand threaded end- 7 I ofthe extension,,15 to retain the. tongue againstdisplacement and provide a'detachi able connection therebetween.

Holding or gripping-dogs 17 ;pivota1ly,

attaching flanges theout er side'sof themine cars, are adapted Wardlytherefrom and between theties 12 of 'Arms 19, extended from the the"dogs or elements 17 pivoted portions of thereto, are. adapted forQ-connectio'n Wltl'l the 'outermost fpro ecting j end ofrthe equalizerbar 13, through the instrumentality of: cables',if1:desired..

'As'shown in Figure 2, the devicesfmay'be. a employed in duplicate toengage'the rail ties 0, uponthe opposite sides of the carsinasmuch 1 asthe cars are subjected to-heavy loads, such V r, Attaching plates 22',also 7 outerjside's of the mine car carried upon, the

rods 21, areqadapted, for connection with 'redogs or elements 17 will benormally induced Straps 24, their ends secured to the outer sides of thecar bodies, have their in-' per-v mit passage and rocking movement 0movement in either direction beyond a predetermined degree. z o Afterthe cars have been loaded at the bot-,

draft appliance is employed at the top of the mine shaft to wind up thecable 16 having connection with the tongue 15. The draft action willovercome the tension of the springs 23 whereby the dogs or elements 17will be disposed parallel with the sides of the car in view of the armand turn buckle rod connections with the equalizer bar. Inthe event thecable should break or something should happen to the donkey engine, theslack draft would release tension against the springs 23 which wouldthen contract to shift the dogs or elements 17 to occupy the Figure 1position. The outermost ends of the dogs or el'e-r ments would engagethe adjacent sides of the ties 12 to prevent retrograde movement of thecars down the mine shaft;

A pin, such as indicated at 25, carried upon one endof the car adjacentthe tongue 15, is adapted for selective receptionwithin an opening 26therein when it is desired to hold the tongue extended, with no draftaction thereon, and the dogs 17 in elevated position. Such circumstancemay arise when the car was damaged and must be run onto a siding. Saidpin would obviouslydropom of the opening 26 when a pull was exercisedupon the tongue by the cable 16.

The invention is susceptible of various changes in its form, proportionsminor details of construction, and the right is herein reserved to makesuch changes as properly fall within the scope of the appended claim.

Having described the invention, what is claimed is A safety deviceformine ears comprising an equalizer bar slidably mounted within the sidesthereof, a tongue carried by the bar and projecting throi'lgh one end ofthe car for corn nection with a draft appliance, dogs rockingly mountedupon thesides of the car for connection at their opposite ends with theties of the car tracks, arms carried by and projecting froin'the pivotalconnections for i the dogs, rods establishing connection between theendsof thc equalizer bar and arms of the dog's, spring-means carried by thecars and having connection with the rods to yieldingly induce said dogsto engage the ties of the tracks for the when the draft appliance isrendered ii'ioper'ative, and straps arranged upon the car to restrictrocking movement of the dogs beyond predetermined degrees.

r In testimtny whereof I affix my signature.

H enonenprnantrts

